# import os
# with open("1.txt", "w") as f:
#     f.write("你是真的蠢\n")
#     f.write("你确定是这样的\n")
#     f.close()
# path = './shijian/'
# a = os.path.exists(os.path.join(path, 'terraform.tfvars'))
# print(a)
#
# b = os.popen('cd /home/ubuntu/Desktop && touch haha.txt && touch shijian.txt').readlines()
#
# def mongo(**kwargs):
#     a = kwargs.get('name')
#     b = kwargs.get('age')
#
#     print(a,b)
# mongo(name='xianghaiyang', age=20)
#
#
#
#
# def coop(*args):
#     print(args[0], type(args))
#     for i in args:
#         print(i)
#
# coop()

t1=('aa','bb','cc')
t2=''.join(t1[0])

print(t2, type(t2))
